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Contract OI history

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Dec 18, 2026 EXPIRATION

BKKT $40.00 Call

BKKT261218C00040000

Latest saved OI431Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BKKT $40.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 4312150 2026-10-02: 431 OI2026-10-05: 431 OI2026-10-06: 431 OI2026-10-07: 431 OI2026-10-08: 431 OI2026-10-09: 431 OI2026-10-13: 431 OI2026-10-14: 431 OI2026-10-16: 431 OI2026-10-20: 431 OI Oct 02, 2026Oct 20, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BKKT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing4310
Oct 16, 20264310
Oct 14, 20264310
Oct 13, 20264310
Oct 09, 20264310
Oct 08, 20264310
Oct 07, 20264310
Oct 06, 20264310
Oct 05, 20264310
Oct 02, 2026431No prior observation